java IO流 将一张图片拷贝到另外一个地方

import java.io.File;
import java.io.FileInputStream;

import java.io.FileOutputStream;
import java.io.IOException;

public class DemoCopy {

/**
 * @param args
 * @throws IOException 
 */
public static void main(String[] args) throws IOException {
	// TODO Auto-generated method stub
	copy();
	
}
public static void copy() throws IOException{
	
	//1.读取数据输入字节流
	//找到图片路径
	File file  = new File("D:\\img\\01.jpg");
	
	FileInputStream inputStream = new FileInputStream(file);
	//2.写入数据输出字节流
	File file1  = new File("D:\\01.jpg");
	FileOutputStream outputStream = new FileOutputStream(file1);
	
	byte [] b = new byte[1024];
	
	
	
	while (inputStream.read(b)!=-1) {
		
		outputStream.write(b);
		
	}
	//关闭流  关闭流原则：先开后关，后开先关。
	
	outputStream.close();
	inputStream.close();
	  
	
	
}

}